I know what you’re talking about, Snoke goes into more detail about Vader’s failure, and sets up Kylo’s motivation for wanting to kill his father. The narrator’s impression is pretty good! Too bad there isn’t a lot of Snoke footage to work with.

Speaking of unused Snoke lines, there seem to be a lot of them. I wonder how much of what was in the novel was actually filmed by Serkis. A particular thing I always enjoyed was in the first teaser, with Snoke saying, “There has been an awakening. Have you felt it? The darkside, and the light.”

I hated how the latter half of that line got cut, but one could reincorporate that by cutting Kylo saying a boring “Yes” in response, and have him answer that question by saying, “The dark side…” then Snoke responds, “and the light…” You could take the “dark side” line from “I’ll show you the dark side” and “and the light” from the original teaser. It just felt so mysterious, but also giving us a little more detail beyond there being an ambiguous awakening in the Force.

That would be a good way to summarize Snoke’s whole monologue and fit it into your concept, if you could cut it in a way that didn’t feel choppy.